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(define-prefix-command 'external-map)
(global-set-key (kbd "C-c x") 'external-map)
;;; Terminals
(defvar km/terminal "urxvt")
(defun km/open-external-terminal ()
(interactive)
(start-process "ext-term" nil km/terminal))
(defadvice shell-command (around shell-command-restore-windows activate)
"Restore window configuraiton after shell-command.
The hides the *Async Shell Command* buffer that is opened in the
other window when an asynchronous command is run."
(window-configuration-to-register :before-shell-command)
ad-do-it
(jump-to-register :before-shell-command))
(defun km/zsh-ansi-term (&optional new-buffer)
"Open an ansi-term buffer running ZSH.
The buffer is named according to `default-directory'. If a buffer
of the same name already exists, switch to it unless NEW-BUFFER
is non-nil, switch to the buffer."
(interactive "P")
(let ((name (concat "zsh:" (abbreviate-file-name default-directory))))
(-if-let (buffer-name (and (not new-buffer)
(get-buffer (concat "*" name "*"))))
(switch-to-buffer buffer-name)
(ansi-term "/bin/zsh" name))))
(defun km/zsh-ansi-term-other-window (&optional new-buffer)
(interactive "P")
(let (buffer-name)
(save-window-excursion
(setq buffer-name (km/zsh-ansi-term new-buffer)))
(pop-to-buffer buffer-name)))
(define-key external-map "a" 'km/zsh-ansi-term)
;; This overrides binding for `add-change-log-entry-other-window'.
(define-key ctl-x-4-map "a" 'km/zsh-ansi-term-other-window)
(define-key external-map "t" 'km/open-external-terminal)
(define-key external-map "r" 'shell-command-on-region)
(define-key external-map "s" 'shell-command)
(define-key external-map "S" 'shell)
(define-key external-map "w" 'woman)
;;; Compilation
(defadvice recompile (around restore-windows activate)
"Prevent recompiling from spawning new windows."
(save-window-excursion
ad-do-it))
(defun km/display-compilation-other-window ()
(interactive)
(-if-let (comp-buffer (get-buffer "*compilation*"))
(display-buffer comp-buffer)
(error "No compilation buffer")))
(define-key external-map "c" 'compile)
(define-key external-map "g" 'recompile)
(define-key external-map "o" 'km/display-compilation-other-window)
;; Give frequently-used recompile a shorter binding.
(global-set-key (kbd "C-c g") 'recompile)
;;; Diff
(setq diff-command "/bin/diff"
diff-switches "-u")
(defadvice diff (after diff-select-and-view activate)
(select-window (get-buffer-window "*Diff*"))
(view-mode 1))
(define-key external-map "d" 'diff)
(define-key external-map "e" 'ediff)
(provide 'init-external)
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